Routing table off-line checking method and system for centralized source routing interconnection network

The invention discloses a routing table offline checking method and system for a centralized source routing interconnection network, and the method comprises the steps: taking a computing node as a source node SN before configuring a routing table, and taking any reachable computing node in a routing table configuration file of the computing node as a destination node DN, object-based modeling is carried out on an interconnection network system, a simulation model is initialized, and the correctness of routing between a source node SN and a destination node DN is checked and calculated based on the simulation model. And when and only when the correctness check of the computing node and the routing domain between all reachable computing nodes in the routing table configuration file of the computing node is passed, the routing table configuration file of the computing node is allowed to be configured into the routing table of the interconnection network switching chip. The invention aims to discover routing err